Product Features: Role: to add oxygen for the tank Product Parameters: 1. White Type: air volume: 2.5L / min, power: 2W, outlet: single hole, using time: 7-8 hours 2. Black Type: air volume: 5L / min, power: 5W, outlet: single hole, using time: 7-8 hours 3. Accessories:air pipe (about 50cm) * 1, air pipe with 4mm inner diameter * 1, sand bubble stone * 1 4. Product Size (cm): 14.5 * 8.5 * 4.5cm / 5.71*3.35*1.77inch Packing list: Air Pump *1 Color: Black/ White Notes: 1. It is recommended to install a stop valve to prevent the machine breaking down when the battery electricity is used up. If you don't have the stop valve, please contact our customer service to buy. 2. It is recommended to put this product in the place above the water to prevent the flow flowing from the air pipe into the pump, which will damage the motor. 3. The product is a battery-powered oxygen pump and can not plug in the socket, so you can only use two D batteries. Battery is not attached, so you should buy it yourself.
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